Question

how can you change a. water to ice? b. ice to water? c. water vapour to water?

Answer 1

Water to ice by freezing.
Ice to water by melting.
Water vapour to water by condensation.

Answer 2

in aPlace some ice cubes in a clear mixing bowl and carefully unscrew the bottle lid. Slowly pour your supercooled water into the bowl. As it hits the ice cubes the water will crystallise, freezing almost instantly
and in Bsublimation is most often used to describe the process of snow and ice changing into water vapor in the air without first meltinginto water.and in C